Electric lamp and socket therefor.



Patented Dec. in, mm. D. D. NUGENT.

ELECTRIC LAMP AND SOCKET THEREFOR.

(llo Iodul.)

FHQE

WITNESSES:

m In

(Application filed Ian. 4, 1901.)

a m S nying drawings, in which- 'slots 4 and 5, into which are secured,prefer- UNITED STATES PAT NT OFFICE.

DANIEL 1).NUGENT, or HARRISON, NEW JERSEY.

ELECT'RIC LAMP AND SOCKET THEREFOR.

SPECIFICATION formingpart of Letters Patent No. 688,48.0,'dated December10, 1901.

- Application filed January 4, 1901. Serial No. 42,047. (No model.)

To all whom it may concern:

- Be it known that I, DANIEL D. NUGENT, a citizen of the United States,residing at Harrison, in the county of Hudson and State of New Jersey,have invented certain new and useful Improvements in Electric Lamps andSockets Therefor; and I do hereby declare the following to be a full,clear, and exact description of the invention, such as will enableothers skilled in the art to which it appertains to make and use thesame, reference being had to the accompanying drawings, and to figuresof reference marked thereon, which form a part of this specification. I

This invention relates to a new and novel construction of incandescentelectric lamp and is designed to provide a lamp cheap and simple inconstruction and which is not cumbersome.

The invention is also designed to provide a socket therefor, which, incombination with the bulb, makes a complete and neat lamp.

The improved device is designed to simplify the construction of thesocket and to provide gslogket that will steadily and firmly hold the Myimproved socket is also designed to f urnish a socket-switch easilymanipulated and which will facilitate the lighting and extinguishing ofpendent-or-movable lamps.

. My invention is illustrated in the accompa- Figure 1 is an elevation,and Fig. 2 a sectional view, of my device. Fig. 3 is a view of a portionof the socket, and Fig. 4 is a section on line 4 in Fig. 2. Fig. 5 is amodified. form of construction of the socket-switch, and Fig. 6 is aview of a modified method of connecting the bulb and thesocket-contacts.

In said drawings similar reference-numbers relate to like parts in eachof the several views.

The lamp-socket is made up of a metallic cylinder or casing l,open atthe ends, into which is placed a cylindrical block 2, madeof porcelainor other non-conducting material, which is provided with a cut-awayportion, forming with the casing 1 a chamber 3, in which is arranged theswitch mechanism. Said block 2 is also provided with a pair of ably byscrews, as shown, a pair of springplates 6 and 7, which can be connectedby the screws to the feed-wires. Said spring plates 6 and 7 project'downinto the chamber 3 and are set opposite to two flat plates 8 and 9,which are formed integral with or may be fastened to the wires 10 and11, extending through thelower end of the block 2 to form the contactsfor the lamp. The said springplates 6 and 7 serve by their own action tokeep the circuit open and also to force a small block 12 against thecasing 1, as shown in Figs. 2 and 4. Secured to said block 12 is a shank13, which is provided with a knob or button 14 and is flattened at itscentral por tion 15. The casing 1 is provided with a circular openinginto which is adapted to fit the shank 13, and a slotted portion 16,Fig. 3, receives the flattened portion of the shank when the button 14is pressed downwardly and in:- wardly. Thus when the button ismanipulated the shoulders on the end of the flattened portion 15 of theshank 13 press against the I inside of the casing and hold thespringplates 6 and 7 in contact with the plates 8 and 9, and the circuitis closed. By a pressure upward the circular portion of the shank ,comesin line with the circular opening in. the casing, as in Fig. 3, and thecontact-plates will snap apart, as will be evident.

On the lower end of the casing 1 is arranged a bell-shaped metallicbulb-receiving socket 17, which is slitted to form spring-arm's 18,-

some of which are cut off and bent inward to form the retaining-hooks19,. which serve to hold the bulb after its insertion.

The bulb 20 is provided with the straight neck portion 22 and thecircular bead 21, forming a circular gripping portion for the receptionof the hooks 19, and it is not necessary to provide the bulb with ametallic sheathing of any sort. At the end of the bulbis placed the diskor plate 23, through which project the wires of the lamp and on theupper face of which are placed the contacts.

On the upper end of the casing 1 is placed a hood or cap 24, and theelements of the socket can be held together by means of the screw 25, aswill be understood.

V Fig. 5 shows a modified forni of .contact mechanism, in which one ofthe spring-plates is omitted and one of the wires, as 26, passesdirectly through the block 2*, as will be evident.

I have shown in Fig. 6 a view at right angles to Fig. 2, showing amodified means of' securing the wires of the lamp to the dislig'23 and anovel contact means. In this construcmore extensive contact.

brace the prongs 27 and 28 and to which are soldered or otherwisesecured the wires of the lamp, as will be evident.

The advantages of my construction embody simplicity ofconstruction,cheapness of manufacture, and case of manipulatiomj By mynew switch and latch mechanism a lamp is simply taken in hand and thebutton pressed, whereas -in the sockets having the turning finger-piecesa lamp-pendant is not lighted or extinguished with one hand.

The bulb-receiving end of my present novel construction is both neat andpositive. The hooks serve to hold and force the contact, while theprojecting spring-arms embrace the neck of the lamp beyond the hooks andby their spring action hold the lamp firm, as it cannot rattle eitherway, the hooks and arms preventing.

The bulb for the present construction of socket is made with a bead ofglass integral with the bulb and requires no sheathing or cumbersomebase. as the retaining-bead is not subject to any twisting strain, asthe stout spring-arms of the socket embracing the central, and firm.

. can be quickly extending bulb beyond the hooks hold the bulb true,

A single disk of non-conducting material to hold the contact-pointsprovides a cheap construction and one that and easily made.

Having thus described my invention, what I claim is- 1. A lampconsisting of a bulb with an integral retaining-bead near its base, afiat noncenducting disk on its base, provided with contacts, incombination with a socket consisting of a switch mechanism, a catch onsaid switch to lock it in its closed position, retaining-hooks on thelower end of the socket to graspthe head on the bulb, and spring-armsthebulb, substantially as set forth.

. 2. A socket for incandescent lamps consist: ing of a casing, a blockof non-conducting ma ter al in said casing cutaway to form-a chamber,spring) contact -plates insaid chamber -communica ng with thefeed-wires,rigid conthe lamps,

tact-plates connected with the contacts for a button bearing on saidspringarms, and a latch mechanism for locking said button and springcontact-plates in their closed positions, substantially as set forth.

3. Asocket for incandescent lamps consisting of a casing, a block ofnon-conducting material in said casin g cut away to form a cham-'-.

ber, spring contact-plates in said chamber, communicatingwith thefeed-wires,rigid contact-plates connected with the contacts for thelamp, an actuating means for said springplates consisting of a block, ashank projectto form retaining-hooks, forth.

beyond said hooks and embracing ing from said block through the casing,a button on said shank, a reduced central portion on said shank, acircular opening in said casing to receive the shank in its openposition and a slot contiguous thereto to receive the reduced portion ofthe shank in its closed position, substantially as set forth.

4.. A socket for incandescent lamps consisting of a casing, a block ofnon-conducting material in said casing cut away to form a chamber,spring contact-plates in said chamber, communicating with thefeed-wires,rigid contact-plates connected with the contacts for Y thelamp, an actuating means for said springplates consisting of a block, ashank projecting from said block through the casing, a button on saidshank, a reduced central portion on said shank, a circular opening toreceive the shank in its open position and a slot contigu'ous thereto toreceive the reduced portion of theshank in its closed position,spring-retaining hooks on the lower end of said socket to grasp alamp-bulb, and spring-arms extending beyond said hooks, to embrace thebulb, substantially as set forth.

5. A lamp consisting of a bulb, a retaining bead near its base, a diskor washer of nonconducting material on the base of said bulb, a pair ofeyelets in said washer connected with the filament, in combination witha socket,consisting of aswitch mechanism, contact-prongs extending fromsaid socket and adapted to project through the eyelets in the lamp,substantially as set forth.

6. A lamp consistingof a bulb, a retainingbead near its base, a disk orwasher of nonconducting material on the base of said bulb, a pair ofeyelets inv said washer connected with the filament, in combination witha socket, consisting of a switch mechanism,con-

tact-prongs extending from said socket and adapted to project throughthe eyelets in the lamp, spring-arms on said socket embracing thelamp-bulb, some of said arms being bent substantially'as set 7. A socketfor incandescent electric lamps, consisting of a chamber containing aswitchmechanism, provided :witha series of springplates integral withspring-retaining hooks of 1 less length, which 5 stantially as setforth.

serve to hold the bulb, sub- 8. Alamp, consisting of a'bulb,,a retainingbead near its base, in combination, with a socket, provided with acircular series of spring-plates to embrace the bulb, integral withspring-retaining hooks of less length, which serve to hold the bulb,substantially as set forth.

In testimony that I claim the invention set forth above I have hereuntoset my hand this 31st day of December, 1900.

DANIEL D. NUGENT.

Witnesses:

' WM. H. CAMFIELD, J r.,

HARRY MARTIN.

